I figured out that if I jumped the presure switch the heater would come on so I ordered a new switch. The new switch also doesn't close the circuit. So I pointed the siphon tube in a direction I didn't mind getting wet and turned on my pump with the switch off and nothing came out.
I haven't changed anything since I winterized it. I'm assuming the tube is blocked with a bit of dirt or rust or something. I stuffed about 18 inches of weedeater filament into the tube but it couldn't get it to go the last 6 inches, think that is because of a tight bend, but it could be the blockage. Either way I didn't get any water to come out.
I have to go buy a special wrench to remove the other end of the tube without tearing the heater apart and try to clear it. Anything else I should try or buy?
We're having a pool party next Friday so i need to have it running by Wednesday night.